3551517161 has 4 divisors (see below), whose sum is σ = 3673983300. Its totient is φ = 3429051024.

The previous prime is 3551517157. The next prime is 3551517191. The reversal of 3551517161 is 1617151553.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2920753936 + 630763225 = 54044^2 + 25115^2 .

It is a cyclic number.

It is not a de Polignac number, because 3551517161 - 2² = 3551517157 is a prime.

It is a super-2 number, since 2×3551517161² = 25226548289754999842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3551517191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61233026 + ... + 61233083.

It is an arithmetic number, because the mean of its divisors is an integer number (918495825).

Almost surely, 2^3551517161 is an apocalyptic number.

It is an amenable number.

3551517161 is a deficient number, since it is larger than the sum of its proper divisors (122466139).

3551517161 is a wasteful number, since it uses less digits than its factorization.

3551517161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122466138.

The product of its digits is 15750, while the sum is 35.

The square root of 3551517161 is about 59594.6068113550. The cubic root of 3551517161 is about 1525.7075868549.

The spelling of 3551517161 in words is "three billion, five hundred fifty-one million, five hundred seventeen thousand, one hundred sixty-one".